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Home -> Community -> Mailing Lists -> Oracle-L -> RE: High disk capacity dangers
HP has for many years stated that one should never push a mount point
beyond 90% utilization. Back on HP-UX 8 that was a real concern because
if you did push it beyond that point because there was a definite danger
that the OS would foul up the mount point due to temporary utilization
from the cache mechanism. I actually did loose a file because of it,
thankfully not a database file. It was not uncommon to find a mount
point reporting 101 or 105% utilization since they reserved 10% just in
case. I believe that has been cured in later versions. We run HP-UX 11
& 11i and do not have a problem in the 98 to 99% range, actually HP-UX
complains bitterly today if you try to push it beyond 100%.
So your SA is right, but wrong in that he's out of date, once again.
-----Original Message-----
From: oracle-l-bounce_at_freelists.org
[mailto:oracle-l-bounce_at_freelists.org] On Behalf Of Fred Smith
Sent: Tuesday, June 06, 2006 8:05 AM
To: oracle-l_at_freelists.org
Subject: High disk capacity dangers
Just wanted to run this by everyone here, I have a 9.2.0.6 database on
HP-UX. Some of my read only tablespaces are on a physical disk that I
keep
at about 99% capacity (it's not going to grow obviously, it's
read-only).
The new Unix SA is saying that it's unacceptable and dangerous to keep a
disk at 98,99, or 100% capacity. I always thought it could be even at
100%
capacity without any problems.
Is there any reason that anyone knows of as to why a disk should not be
at
99% or 100% capacity?
Thank you!
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Received on Tue Jun 06 2006 - 07:59:48 CDT
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